Rock Tseng

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Hsinchu, TW

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Patents Grantslast 30 patents

Information Patent Grant
Multi-stage sprocket assembly for bicycle
- Patent number 5,935,033
- Issue date Aug 10, 1999
- Tracer Company, Ltd.
- Rock Tseng
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

Information Patent Application
Combination of sprocket set and rivet structure
- Publication number 20030073531
- Publication date Apr 17, 2003
- Apex Bicycle Components Corporation Ltd.
- Rock Tseng
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Application
Crank structure for bicycle
- Publication number 20030070506
- Publication date Apr 17, 2003
- Apex Bicycle Components Corporation Ltd.
- Rock Tseng
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS